18288508

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1\times {\mathrm{139}}^1$

素因数の和:314

約数の個数: 48

約数和(自身を含む): 38133760

約数和(自身を除く): 19845252

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 127, 139, 148, 254, 259, 278, 508, 518, 556, 889, 973, 1036, 1778, 1946, 3556, 3892, 4699, 5143, 9398, 10286, 17653, 18796, 20572, 32893, 35306, 36001, 65786, 70612, 72002, 123571, 131572, 144004, 247142, 494284, 653161, 1306322, 2612644, 4572127, 9144254, 18288508]

約数ペア:

[(1, 18288508), (2, 9144254), (4, 4572127), (7, 2612644), (14, 1306322), (28, 653161), (37, 494284), (74, 247142), (127, 144004), (139, 131572), (148, 123571), (254, 72002), (259, 70612), (278, 65786), (508, 36001), (518, 35306), (556, 32893), (889, 20572), (973, 18796), (1036, 17653), (1778, 10286), (1946, 9398), (3556, 5143), (3892, 4699)]